Remove the (4) seat bolts at each corner of the base of the seat. If you have any questions, please contact us in time. When the generator is started, a signal will be obtained on the D+ Ignition cable, which will light up the indicator light of the charger. This manual showed me the two connections points I needed to make on pages 245 thru 248, one for 70 amps of power going to my DC to DC charger located in the rear of the van and the other was a small 12v signal wire that is used to turn the DC charger on ONLY while the engine is running. What is a DC-DC charger? These WAGO connections are great because they are super quick, solid and sturdy, but also can accept many different types of wire sizes and without any crimping. And with multi-stage charging and multi-chemistry functionality, Renogy's DC to DC MPPT Charger has you covered whether you're using Flooded,Gel,AGM, orLithium batteries. When the BMS wants charge this charger acts as a current limited charger, thus protecting the alternator; when the BMS does not want charge this charger just acts as a voltage regulated power supply. 2. A charger like the Renogy 12v DC To DC On-Board Charger is a great vehicle charging solution. This 20A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. Just the 7 pin trailer connections. If you have any questions regarding this product, please, More questions about your off-grid power system? Bonus points : he is friends with Ray at Love Your RV, so we knew we could hit up Ray if we hit any technical issues or roadblocks during the install. The DCC50S is a bit larger than our first choice, at 9.6 inches wide, 5.7 inches deep, and 3 . Its only when we are socked in for a few days in a row with absolutely no sun in sight that things start to run a bit thin. 12V 40A DC to DC Battery Charger w/o Solar Input. This means, (in theory without any loss over the cabling runs), the DC-DC Charger can provide up to 480 watts of charging power to our batteries (40amps x 12 volts = 480watts). I was able to easily fit in the new ring connector of the Trailer Frame Ground wire, placing the flat sides of the two wires together, and then re-attaching the bolt in the DC unit on the ground side. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. 3-phase MPPT Charging Technology Of course, this step got repeated a few times on the cabling on the Truck and inside the camper, just showing his current method. so would be 45 amps from the alternator and 5 from the solar making up the 50 amps. The Renogy is $130 less. Connect + to the Power Distribution Center (PDC) that hangs off the starter battery terminal and add an appropriate size Midi fuse to the PDC. Opened up the hood of the truck and flipped the breaker to ON which means we were sending power from the truck battery to the DC Charger. This will give maximum battery cell life. The issue : after about 5 minutes, the 50amp breaker on the truck would trip. The key components of a solar van installation are: Solar panels: Solar panels come in two main types: monocrystalline and polycrystalline. The charger will overheat and go into error 6 mode when driving using the alternator. They were just totally overwhelmed, trying their best to have their techs work remote and adapt to the Pandemic workflow. The RV came with a mechanical solenoid isolator but I believe it was broken. Pretty good in theory, but it was much much harder to accomplish the cable pull through the hose. This means that, all I had to do was run a #4 cable from the shunt, snake it through the existing wiring, and terminate that cable in the back of the DC Charger, on the Input side. I have a couple of installation questions about my Renogy 40amp DC DC charger with 2 200AH Lithium Batteries (ampere time) Question 1: So I have seen were folks put in a switch that sees 12V and turn it to the on position to enable the DC/DC and turn it off when they dont want to pull from the tow vehicle. You simply attach the positive and negative leads from each battery to either side of the charger, then connect a wire from the charger to the ignition system. The charger needs to select the charging mode according to the battery voltage. Do not reverse the polarity since the reverse polarity of the battery connections can cause injury and damage to the device. This one took a few more steps to complete after the fact than normal. When connecting the charger and the battery, make sure the battery poles are clean when connecting the terminals, select a sufficient cross-section for the connection cable, tighten the nuts and bolts with proper torque as loose connections may cause overheating. When connected with two batteries, it is vital to be able to isolate the two start and service batteries for charging safety. I have a 2018 Winnebago View in which I recently installed lithium house batteries, an inverter charger, MPPT solar controller supporting 4, 100watt panels, xantrex monitor and a dc-to-do charger. I was able to return the original DC unit to Amazon, now that I had a second unit directly from Renogy (now that we knew the original unit was not defective). Disconnect the two wiring harness connectors under the driver seat, one is white and one is yellow. BUT (heres the issue) after 30 secs or so the Renogy starts turning on and off (internal protection?) An external fuse is required for installation. This would complete the Truck positive and ground for the power output from the battery. Next look back into this cavity and you'll see the disconnect tap, it has a red button on it, depress the button and pull the plug off the post, its tough to reach but relativity easy to pull off. We were headed from Green River to Moab, UT which is about a 1 hr drive. We looked at the instructions a few more times, even searched for a more recently updated version of the instructions as a pdf (in case ours were out of date). The D+ Ignition cable is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. Renogy Dual Input DC-DC On Board MPPT Battery Charger with its built-in VSR allows vehicle owners to enjoy the benefits of fully charged deep cycle service batteries while reliably isolating it to the engine starting battery with one easy-to-install charging system. Renogy DC-DC On-Board Battery Charger is designed to charge service batteries from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit, offering multiple charging options and ensuring your battery stay fully charged. Similar to the 7pin connector on a travel trailer or 5th wheel (that runs the camper running lights, brake controllers, and actually can send a little bit of dc power to your camper, but mainly for trickle charging at a low amperage), the idea is to run another high-amp connection from the tow vehicle (on an additional / separate cable to the 7pin towing cable) which is capable of delivering much more power directly to a DC charger which is connected directly to the house batteries of the camper. CE certification. Haven't observed any overheating issues, but may add a 12v computer fan to help shift some air across the rear just in case. 3. This implies that various levels are employed while the battery charges. Renogy 40A DC to DC Battery Charger ; Nominal Voltage: 12V: Rated Charge Current: 40A: Output: 500W: Idle Power Consumption: <0.4A: Input Voltage Range: 8V-16V: . These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. This took way longer than I had hoped, mainly because I had never used a hammer crimper before. Easy to install and well made. The system prioritises solar but in my opinion it would be better if it prioritised the alternator. Links to all products Cahn uses below. When the ignition turns on, it signals your charger that the alternator has engaged, which turns on the charger itself. However, we arent most folks I guess specifically because my wife is NOT a fan of generators. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. For battery settings please refer to the Manual Book on page 12&15. Charger then connects to two 12V 35aH solar AGM batteries from harbor . These types of systems are not new, and actually quite common in drivable RVs, but I will be describing this in terms of a towable camper. 2. 50A DC DC Board Battery Charger with MPPT Renogy 20/40/60A DC to DC Battery Charger Rover 20/30/40/60/100 Amp MPPT Charge Controller Rover Elite 20/40A MPPT Solar Charge Controller 40A Set w Holder ANL Fuse, 40 amp (40A ANL Fuse Set w/Fuse) Renogy One All-in-One Smart Panel System Energy Monitoring ; Nominal System Voltage : 12V DC : 12V DC The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. This Renogy DC-DC On-Board Battery Charger with MPPT is compatible with both traditional and smart alternators. The manufacturer knows their product better than anyone else. Bought a 170 lithium battery from renogy 4 months ago and one major issue shows up every-time. 3. 2. Renogy 20A 12V DC to DC On-Board Battery Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. 1. We checked that we had good current coming in to the input side of the unit, that was working properly. So if you leave the solar on on a cloudy day, yo will get 25 amps from the alternator and maybe 1 amps from the solar, you are then losing around 24 amps. I anchored these to the wall so there would be no real stress points and tested all connections. and THERE WAS ! This diagram shows the whole connection of the DC-DC On-Board Battery Charger. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); im out at Hartman Rocks, just outside of Gunnison, CO. The D+ is going to my running lights on my TT after the 7-pin connector. Totally demoralizing after a long 6-7 hour overall project effort. This was puzzling to me, since it would seem that a 40amp DC charger wouldnt draw more than 40amps. Thanks for the update. DC-to-DC charger. It's the smart way to keep yourself fully charged and off-grid longer! Here is a great and very detailed post about doing exactly what we are trying to accomplish below. 18-16AWG copper cable recommended. This system works very well for our needs, but has one major weakness : lack of sun. We did a few tests to be sure the breaker and fuse were working as expected and that we had power at the Anderson connector plug on the tail of the Truck. this was something I could handle on my own (with some advice from Eddie, naturally). What will happen if the service battery is fully charged? Also would like an option to dual charge [from PV] both starter battery and leisure battery (eg before leisure battery is full) in case static for some time to keep starter battery topped off, but would need dual charging logic (lead acid vs LiFePO4) so maybe a bit much to ask. This is a good quality hose, very pliable and wide. Make sure that the plug cannot tough the post by pushing it down out of the way. I use a small fan to help it stop overheating. She had one priority in regards to energy usage when we were starting our camper journey, which was, above all, she would prefer to not be reliant on using a generator, ever if possible. Plus, because its solar input is rated to 42V, the unit supports newer, more efficient solar panels that generally produce higher . While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Much like a Solar Controller, the DC-DC Charger needs to know your battery chemistry as well as the recommended voltage range so that it can properly charge. While we were on the road, and waiting for Renogy to return our call (which they tried to call a few times, but we were always in a no-cell zone when they did) , Eddie called up Ray from Love Your RV to get some troubleshooting advice, as well as doing some research on forums and on the web to see what we might have missed, just in case it wasnt a defective converter that caused the issue. SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. Eddie recommended the following gear, which we mostly bought from Northern Arizona Wind and Sun (highly recommended retailer!) I solved this problem by installing a switch to isolate the solar when driving and in this way the alternator side produces and charges at 50 amps. Its a great MPPT Solar controller/DC to DC battery charger. 3. This diagram shows the whole connection of the DC-DC On-Board Battery Charger. I randomly stumbled upon this and I'm glad I did. Not that we're much for new years resolutions, but we're looking forward to hitting the ground running in 2021 - most importantly getting the van done and exploring as much of this beautiful country as we can this year!Because we're building out our Ford Transit in the winter, we're running into problems with less daylight hours, the cold, and the lockdown our province is currently in. If you have any questions regarding this product, please submit a case ! Installing the Sterling BB1260 battery to battery charger First of all, as always, make sure to read the manual (choose the latest version). With multi-stage charging and multi-chemistry This multi-stage, multi-input battery charger can charge a service battery from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit. Renogy's DC to DC charger packs all the same capabilities as any other manufacturer's, at a lower price point. I am experiencing the same problem for my 2.0 amp Renogy charger no green light. That would make a nice durable coating/covering for the 2 #4 wires. In short, Id suggest youre probably better off with a higher rated. Ive hooked up my 40A Renogy DC-DC with input from TV with 4ga Anderson connector and output to my 280Ah LiFePO4. How do I set the battery since there is no display screen? Most default dual battery systems support auxiliary battery charging through an isolator but commonly this does not allow for a full charge of the second battery bank. Also it seems like not alot of folks have the power and heated seats so there wasn't much info on wiring bit. Location Make sure to install the B2B charger in a well vented space, and do not obstruct the hot air exhaust: Wiring and Electrical If you have any questions regarding this product, please, 2.65 X 1.38 X 0.55 in (67.3 X 35 X 14 mm), SBPVW (Self build panel vans with windows) on Mar 23rd 2021, 12V 20A DC to DC On-Board Battery Charger, DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT(New Version), 12V 40A DC to DC On-Board Battery Charger, 12V 60A DC to DC On-Board Battery Charger, 12V 100Ah Lithium Iron Phosphate Battery w/ Bluetooth, RBC3050D1S Fuse Installation Instructions, Monitoring Screen for DC-DC MPPT Battery Charger Series manual, Alternator Input Voltage : Traditional Alternator: 13.2-16VDC Smart Alternator (Euro 6): 12-16VDC, Operating Temperature Range : -31F~149F / -35C~65C, Dimensions : 9.6 x 5.7 x 3.0 in / 244 x145 x77 mm, Communication Port:RJ45 (RS485 Protocol), Operating Temperature Range: -4F~113F / -20C~45C, Dimension: 2.76 x 4.33 x 1.25 inch / 70 x 110 x 31.8 mm. 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